| Name | CVE-2025-40908 |
| Description | YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libyaml-libyaml-perl (PTS) | bullseye | 0.82+repack-1 | vulnerable |
| bookworm | 0.86+ds-1 | vulnerable |
| sid, trixie | 0.903.0+ds-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libyaml-libyaml-perl | source | (unstable) | 0.903.0+ds-1 | | | |
Notes
[bookworm] - libyaml-libyaml-perl <no-dsa> (Minor issue)
[bullseye] - libyaml-libyaml-perl <postponed> (Minor issue)
https://lists.security.metacpan.org/cve-announce/msg/30071726/
https://github.com/ingydotnet/yaml-libyaml-pm/issues/120
https://github.com/ingydotnet/yaml-libyaml-pm/pull/121
Fixed by: https://github.com/ingydotnet/yaml-libyaml-pm/commit/5fe9daed726c06900c3cd41a739460057bec6dc3 (v0.903.0)
https://github.com/ingydotnet/yaml-libyaml-pm/pull/122